Mikko Nylén
Engineering Manager (Tech Lead) at Supercell
Pirkanmaa, Finland
Summary
👤
Senior🎓
Top SchoolMikko Nylén is an engineering manager and tech lead with 15 years in software development and over a decade specializing in architecture, backend systems, and infrastructure automation. He combines hands-on backend and frontend skills to deliver end-to-end features and has led teams at Supercell while previously consulting through his own company. His experience spans IoT platforms, high-throughput analytics, and cost-optimised AWS infrastructures where he delivered measurable savings and performance improvements. A pragmatic problem-solver, he has improved testing and error handling in open-source projects like the Scalatra web framework, reflecting a strong focus on reliability and developer experience. Comfortable across languages and stacks—from Scala and Ruby to React and serverless patterns—he blends deep technical craft with mentorship and operational ownership. Based in Pirkanmaa, Finland, he brings a steady mix of architectural rigor and hands-on execution to complex distributed systems.
15 years of coding experience
16 years of employment as a software developer
University of Helsinki
Finnish, English
Github Skills (10)
scala10
http-mock10
http10
http-kit10
test-framework10
file-upload10
httpd10
test-automation9
jetty9
web-framework9
Programming languages (15)
Github contributions (5)
scalatra/scalatra
Apr 2012 - Sep 2013
Tiny Scala high-performance, async web framework, inspired by Sinatra
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:88 commits in 1 year 5 months
Contributions summary:Mikko primarily focused on enhancing the testing framework of the Scalatra web framework. They introduced methods for testing multipart/form-data file uploads, significantly improving the test coverage for file upload functionality. The user also addressed an issue where exceptions in file upload parsing were not handled correctly, ensuring errors were properly processed within the framework. Further contributions included adding tests that validate the correct behavior of error handlers and file parameters, along with refactoring of the test code.
sinatratinyperformancescalaatmosphere
mnylen/failurous
Oct 2010 - Oct 2011
Contributions:104 commits in 1 year
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